Method and device for conveying chemicals through borehole

Details Method and device for conveying chemicals through borehole Method and device for conveying chemicals through borehole

E - Fixed Constructions

21

B

166/32

E21B 33/13 (2006.01) E21B 27/02 (2006.01) E21B 29/04 (2006.01)

Patent

CA 1268414

ABSTRACT OF THE DISCLOSURE A capsule for conveying chemicals through a borehole for stopping lost circulation has a fragile bottom plate. A weight for destroying the bottom plate is suspended above the capsule by a cord which extends over knife edges. A messenger for cutting the cord is mounted to a wire line. The weight is caused to collide with the messenger to cut the cord, for breaking the bottom plate. Thus, the chemicals are diffused.

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